Looking at your solution, I can see you are trying to parse the string in the column. Try this. put 'release' in one column and the version number in another and then put them together in the 3rd column. So you might have A1 as 'release' and B1 20160504 and then in C1 you concatenate them. Now in E1 you can use B1 using a comparison considering it will be a number. Of course, you would also do this with your fixed version. You can HIDE the A and your B column in order to make it look cleaner. Of course, you would also hide your extra columns for the fixed side as well.